FIELD: aircraft engineering.
SUBSTANCE: aerodynamic profile of cross section of the lifting surface area has a chord with the length B. The leading edge of the profile is rounded, the rear edge is sharpened or blunted. Edges are located on the ends of the chord profile and connected to each other by smooth lines of top and bottom parts of the profile contour. The leading edge of the blade profile has radiuses of rounding-off of the top part of Rt contour in the range 0.009B÷0.017B, and the bottom part of Rb contour - in the range 0.006B÷0.015B. The maximum relative thickness of C profile is in range 0.105B÷0.112B and is located at the distance X = 0.25B÷0.4B from the leading edge of the profile along its chord. Versions of inventions have various forms near the rear edge.
EFFECT: increase of load bearing capacity.
6 cl, 8 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| AERODYNAMIC PROFILE OF BEARING SURFACE CROSS-SECTION (VERSIONS) | 2014 |
|
RU2559181C1 |
| AERODYNAMIC PROFILE OF CROSS SECTION OF LIFTING SURFACE AREA | 2014 |
|
RU2558539C1 |
| PROPELLER BLADE | 1996 |
|
RU2123453C1 |
| AIRFOIL OF THE CARRIER ELEMENT OF AN AERIAL VEHICLE | 2022 |
|
RU2789094C1 |
| AERODYNAMIC PROFILE OF LOAD-BEARING MEMBER OF FLYING VEHICLE | 1996 |
|
RU2098321C1 |
| AERODYNAMIC PROFILE OF THE AIRCRAFT CARRIER ELEMENT | 2020 |
|
RU2752502C1 |
| PROPELLER BLADE AND AEROFOIL PROFILE OF BLADE (VERSIONS) | 1996 |
|
RU2145293C1 |
| HELICOPTER MAIN ROTOR BLADE | 2006 |
|
RU2314230C1 |
| AERODYNAMIC PROFILE OF AIRCRAFT LIFTING ELEMENT | 2023 |
|
RU2808865C1 |
| AERODYNAMIC PROFILE OF AIRCRAFT LIFTING ELEMENT | 2023 |
|
RU2808523C1 |
